Author Topic: Pianet CH Radio Circuit and Pickups  (Read 121 times)

Offline groovemonkey73

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Pianet CH Radio Circuit and Pickups
« on: June 28, 2020, 01:33:34 PM »
Hey all!
Just picked up this rather charming Hohner Pianet CH from the early to mid 60s. I got it knowing there was an output issue, with the rather curious little radio circuit being the possible culprit. The Pianet powers up, the trem seems to work as the light bulbs lights up and flashes when engaged, and when plugged in, the hum pulsates at the same rate as the lights flashing. The output hum sounds much like a ground hum.

I've had the radio circuit out, noticed the little coil wasn't soldered to one of the posts, and hoped thats all it was, but unfort wasn't.

Also, is there any quick/easy way of knowing/testing the pickup(s)? There doesn't seem to be a lot of info/wiring diagrams out there! - Anyone much experience with this era of Pianets?!
1979 Mk1 Rhodes 73
1964 Hohner Pianet CH
Nord Stage 2 Compact
Hammond XK3c
1915 John Broadwood & Sons Upright

Offline sean

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Re: Pianet CH Radio Circuit and Pickups
« Reply #1 on: June 28, 2020, 03:16:19 PM »

Offline groovemonkey73

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Re: Pianet CH Radio Circuit and Pickups
« Reply #2 on: June 29, 2020, 04:22:41 AM »
Thanks Sean, really appreciate that.
1979 Mk1 Rhodes 73
1964 Hohner Pianet CH
Nord Stage 2 Compact
Hammond XK3c
1915 John Broadwood & Sons Upright

Offline Jenzz

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Re: Pianet CH Radio Circuit and Pickups
« Reply #3 on: June 30, 2020, 01:32:24 PM »
Pianet CH Owners Manual incl. Schematic:

http://www.hohner-pianet.com/hohner_pianet/pianet_ch.html


Jenzz

Offline theseacowexists

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Re: Pianet CH Radio Circuit and Pickups
« Reply #4 on: Yesterday at 01:37:31 PM »
Are you getting any signal, or just the hum?

Offline groovemonkey73

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Re: Pianet CH Radio Circuit and Pickups
« Reply #5 on: Today at 10:45:53 AM »
Just hum at the moment!
1979 Mk1 Rhodes 73
1964 Hohner Pianet CH
Nord Stage 2 Compact
Hammond XK3c
1915 John Broadwood & Sons Upright